Kidōmaru can send chakra through his spider webs to instantly detect the approach of any enemies foolish enough to touch it. These threads spread in all directions and are so sensitive, that not even the slightest disturbance of the air goes unnoticed. Additionally, the threads are so thin, they can hardly be seen, yet they are stronger than steel wires. This technique is especially useful in enemy territory when Kidōmaru needs to rest while still remaining on guard.